W T Henley was quick to identify the benefits of using composite polymer insulator technology to replace traditional materials such as glass or porcelain for Insulators.

We developed a unique EPDM* cladding material formulation, which has been in service now for more than a quarter of a century and in a variety of applications.

*Most products are now also available in Silicone

Benefits include

Light weight

Impact and vandal resistant

High pollution resistance

Low profile - makes them less environmentally obtrusive


A wide range of substrates and end fittings

Many direct replacement products to obviate the need to re-tension lines after replacement of traditional insulators

Polymeric Insulators Range

Contact WTH

WT Henley

Unit 4A, London Medway Business Park,

James Swallow Way, Hoo,

Rochester ME3 9GX

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Christmas and New Year Holiday closure

Please note that we will be closed over the festive period, from close of business on Friday 22nd December, until we re-open on Tuesday 2nd January 2018. close.

WT Henley has moved!

Please note that we have now relocated to our new site on London Medway Business Park, Hoo. close.